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Old 07-27-2013, 08:01 PM
Bagstrap Bagstrap is offline
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Default New M&P9 Compact 10 Rd Mag Issue

Hello,
New to the forum and just purchased an M&P9C and having trouble loading the 10th round.(Yes, MA compliant) Gun was mfg on 6/26/13. Cannot load 10th round with Uplula however can load 10th by hand with some effort. Then difficult to seat mag when slide is closed.
Have read different comments on various sites, store mag loaded and it will break in, modify follower/spring etc. I don't want to start modifying until I run some rounds thru it but just wondering if this is normal and it needs to be broken in? Conflicting reports out there. Some say it will break in, some say modify follower.
Just looking for some insight.
Thanks, look forward to some great info.
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Old 07-27-2013, 09:13 PM
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I have the same problem with my 12 round mags. All the ones with the newer followers will only take the 12th round manually (no Uplula) and putting it in the pistol with the slide closed is very difficult. I have 1 older mag (different follower, doesn't have the "9" molded into the face) that I can load 12 and put it in the pistol. I talked to S&W and they sent me some followers (I wasn't sure which was the old style) but of course the latest followers were the ones that wouldn't take the last round.. I have trimmed down the followers with no effect. The springs are the same length as the 1 mag that doesn't have the problem. I'm still playing around with it but haven't found a solution yet. Wish I could be of more help.
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Old 07-27-2013, 09:54 PM
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Thanks for the response. I trimmed down one of the followers but still have to load final round by hand and still tight to insert mag when slide closed. I emailed S&W only to get an auto response letting me know that they are on their yearly closure.
I will patiently wait to hear back from them.
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Old 07-27-2013, 10:18 PM
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My FS9 and 40C/9C (I change barrels) is the same. Living in CA all of my mags are 10 rounders and I have trouble loading the 10th and can only load the mag into the gun with the slide forward with 9 rounds, never with 10. I have about 3000 rounds through the FS9 and about 1000 through the 40C/9C, so it doesn't really get better on its own. My solution is just to use 9 rounds most of the time. (at the range i always slap the mag into the gun with the slide back and then release the slide).
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Old 07-27-2013, 10:32 PM
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Quote:
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Thanks for the response. I trimmed down one of the followers but still have to load final round by hand and still tight to insert mag when slide closed. I emailed S&W only to get an auto response letting me know that they are on their yearly closure.
I will patiently wait to hear back from them.
Maybe I'll play with this some more tomorrow. I have 3 new followers that S&W sent me in an attempt to fix this but they were the same as I had in there. I'm thinking of modifying the followers to resemble the 1 old style one that I have (the one that will load 12 rounds and can put the mag in the pistol with the slide closed) If I screw one up I have spares. I'll take pictures so if I'm successful there will be a guide for others.
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Old 07-27-2013, 10:39 PM
EugeneNine EugeneNine is offline
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My 12 round magazines were the same way, the springs are quite stiff. As others said fill them and let them sit full for a while. Also lock the slide back then insert the magazine. After a while they start to get easier.
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Old 07-27-2013, 10:59 PM
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I have zero problems with my hi-cap mags. 15 and 17 rounders are like butter. The 10 rounders that came with my 9C are absurd. The 10th round is so tight, I'm afraid the feeding lips of the mag will bend.
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Old 07-27-2013, 11:55 PM
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Default Living in MA with same problem on 10 round mag

I am also in MA and have the 2 10 round magazines that won't load the 10th round with my UpLULA. With some awkward handling I can manually load the last round but also have trouble loading the magazine into the pistol. I hope you guys find some answers and post please.
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Old 07-28-2013, 12:33 AM
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My two 12rd mags won't load the 12th with an UpLula as well. Heck, I can't load over 2 rounds without the UpLula. The springs are very tight and I have arthritis in my hands and fingers. No problem with my BG 380 mags but the 9c mags are a different story.
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Old 07-28-2013, 07:36 AM
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It's normal. Unfortunately.

Load that last round by hand. Squeeze the mag into the gun with both hands, muzzle pointed in safe direction of course. When it clicks you're good to go. You get used to it. Slamming the mag in doesn't work.
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Old 07-28-2013, 07:55 AM
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Insert the mag into the pistol with the slide to the rear and then let the slide slam forward. Problem solved.

Isn't the purpose of inserting a full mag to load the pistol? You have to pull the slide to the rear to do that anyway.

I understand those of you in the occupied states may be trying to load 10+1. I habitually load 9+1 in my 12 round mags and 14+1 in my 17 rounders. It's easier for me to remember how many rounds I have loaded.

I carried a 5 shot revolver for years and never felt undergunned. People are going nuts for the Shield with its 8+1 capacity.
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Old 07-28-2013, 10:01 AM
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Quote:
Originally Posted by Bkreutz View Post
Maybe I'll play with this some more tomorrow. I have 3 new followers that S&W sent me in an attempt to fix this but they were the same as I had in there. I'm thinking of modifying the followers to resemble the 1 old style one that I have (the one that will load 12 rounds and can put the mag in the pistol with the slide closed) If I screw one up I have spares. I'll take pictures so if I'm successful there will be a guide for others.
Thank you! Look forward to seeing the pics.
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Old 07-28-2013, 05:44 PM
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OK, I think I've got it figured out (at least to my satisfaction) but I have to insert a warning here. This is a modification that you take at your own risk. If you live in a location with a limit on magazine capacity make sure you don't modify your magazine so that it will take more rounds than is legal in your location. If you decided to try this, make sure there is no way you can force an extra round in there (like an 11th round in a 10 round magazine). If I understand correctly, having possession of one of these is illegal, so don't tempt fate. (OK, I'm done). What I've found is that there are at least 3 different followers for the 12 round 9c magazines. I thought that the ones the Smith sent me were the same ones that I had in 3 of my magazines (with the "9" molded into the top of the follower) but they are slightly different. The one that I can get 12 rounds in and load into my 9c with the slide closed is completely different and doesn't have the "9" molded into the top. The rest of the mag is identical. I've attached pictures showing the old and the new styles side by side. I'm going to start another post since I can only put 5 pictures per post. The last picture is the part number and bag that I got from S&W (free) when I called them and told them about the problem. This last part will actually take a 12th round but it's still very difficult to insert into the pistol with the slide forward.
Attached Images
File Type: jpg 9c side by side - new on right.JPG (145.8 KB, 95 views)
File Type: jpg old style vs new style.JPG (136.7 KB, 96 views)
File Type: jpg old style vs new style1.JPG (144.4 KB, 93 views)
File Type: jpg old style vs new style3.JPG (141.8 KB, 87 views)
File Type: jpg current follower.JPG (145.9 KB, 94 views)
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Old 07-28-2013, 05:52 PM
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Next step was to get the 12th round into my other 3 mags (the 1 "Old style" mag took the 12th round easily and loaded into my pistol easily). My tool of choice was a sanding block and 80 grit paper. You can see by the pictures that I had to take quite a bit off the followers to get them to work. I had to assemble and disassemble the mags many times to make sure I didn't go too far. (I don't have a mag capacity limit where I live but I wanted to just get to the advertized mag capacity)
Attached Images
File Type: jpg stock vs modified.JPG (131.2 KB, 67 views)
File Type: jpg stock vs modified1.JPG (121.6 KB, 64 views)
File Type: jpg stock vs modified2.JPG (138.8 KB, 65 views)
File Type: jpg top side of completed followers.JPG (151.4 KB, 63 views)
File Type: jpg underside of completed followers.JPG (145.5 KB, 60 views)
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Old 07-28-2013, 05:54 PM
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And this is what I ended up with. I can load all 12 rounds with the Uplula. Just make sure you don't take too much off and make yourself a criminal
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File Type: jpg 12 rounds in mags.JPG (143.8 KB, 48 views)
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Old 07-28-2013, 06:03 PM
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Wow, great pics and info! So based on the pics, not only did you have to sand the front and back legs, you also had to take down the middle area. The material used for the follower is pretty soft so roughly how much do you think you had to sand off?
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Old 07-28-2013, 07:29 PM
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Quote:
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Wow, great pics and info! So based on the pics, not only did you have to sand the front and back legs, you also had to take down the middle area. The material used for the follower is pretty soft so roughly how much do you think you had to sand off?
Kind of hard to measure, but if I had to guess, probably 1/4" or so. I worked up to it, sanded some off (including the middle), put the mag together, decided it wasn't enough and did it again until it did work. I've never seen a 10 round mag so I don't know how they accomplished that (either a thicker baseplate or a thicker follower) but in theory this should be the same procedure. I have no problems loading my FS to the 17 round capacity without any modifications.
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Old 07-28-2013, 07:43 PM
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Bkreutz,

Good work!! Now I've got to ask S&W for some of the new followers. And go from there. I hope you info S&W on this. Might prod them into copying your effort.
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Old 07-28-2013, 09:14 PM
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Bkreutz,

Good work!! Now I've got to ask S&W for some of the new followers. And go from there. I hope you info S&W on this. Might prod them into copying your effort.
Actually all they would have to do is go back to the follower without the molded in "9". That one I haven't touched and it loads 12 fine and clicks easily into the pistol. Wonder why the change in the first place. It is quite different.
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Old 07-30-2013, 08:52 AM
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Received an auto reply from S&W, they are closed for 2 WEEKS!! WOW! They do not return until Monday August 12. I guess they will have plenty to do when they return seeing how there is no end in sight.
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Old 08-12-2013, 05:19 PM
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Quick update. Spoke to S&W C/S this afternoon after being on hold for 53 mins. Don't call them the day that they come back from a 2 week break. (good thing I had things to do while I waited). He told me that the 9C mags have full size springs in them. Which would tell me they use one style spring regardless of the capacity of the mag??? Even on a 10 rd mag. Hmmm, that seems interesting. So if he is correct, the spring in my 10 rd mag is the same that is in a 17 rd full size M&P? Wouldn't that make the 17 rd tension weak? I am not an engineer but I did stay at a Holiday Inn Express last night. Anyway, he said that the spring needs to be broken in (no notes of that in the owners manual like my Kahr PM9 break in period)
Clearly by the info that has been shared here the follower has been updated as well. He told me the follower change has no effect.
I have about 300 rds thru the weapon, I will put a few hundred more thru it to see. I keep both mags loaded when stored to see if it will eventually make a change. Being in Massachusetts, I don't want to mess around with the springs and make myself a criminal. I sanded down the follower a little bit. I'll just wait and see.
Thanks!
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Old 08-12-2013, 06:08 PM
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The best, easiest, and quickest solution is to cut one loop off the magazine spring. Give that a try and if it is still too tough cut another loop off. There is no magic about mag springs - if they are too strong make them shorter.
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Old 08-13-2013, 07:26 PM
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Called S&W again while I had some time today and spoke to a different rep who told me if the mags can't be loaded with 10 rds using a Maglula (which I have) then then mags need to be sent back for inspection. He said he would send me a 3rd mag so I won't be mag-less while they inspect the 2 I have. He said he would be sending me a shipping label and a spare mag. He took all of my info including email address, not sure how long it takes but I have yet to receive any sort of confirmation. So far I am not too impressed with the customer service based on the 2 phone calls and 2 different answers I have received. Fortunately the gun itself has been flawless from an operational standpoint but if they advertise 10+1 then it should be that way without forcing the 10th rd into the mag and forcing the mag into the weapon.
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Old 08-13-2013, 10:42 PM
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Interesting. Good of S&W to ship you a mag while you wait.

I have difficulty loading the 10th round in my .40 mags, but it does go in there. I hope y'all get it figured out.
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Old 08-14-2013, 11:05 PM
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The compact magazines have the same springs as the full sized ones. Keep the new magazines loaded for a while, that will help with the break in.

I just switched mine out with my used full size magazines.

As for the springs in the full size magazines being undersprung, I have gone to Arredondo extensions on a couple of my full size magazines, keeping the now well worn original springs without any issues. But I have only used the extended magazines for two 3gun matches so far.
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Old 08-15-2013, 12:15 AM
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My 12rd. mags have been constantly loaded for over 3 months and they still take a little effort to lock them in on a closed slide. It's just the nature of it, but no big deal.
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Old 08-15-2013, 12:36 AM
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Leaving a mag loaded will not significantly alter the spring.
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Old 08-15-2013, 01:36 AM
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Leaving a mag loaded will not significantly alter the spring.
Very true, the spring will only take a set fully loaded and unused. Mine have been used too with no give on mag insertion either.
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Old 08-15-2013, 03:22 PM
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I'm Mass as well. I have 7 10rd mags for both a full size and compact M&P 9. I use a Glock loader and have no problems loading all 10 round in the Mags. I just ordered a new follower and Spring from Smith & Wesson on the 12th. The C/S Rep. Told me that they use the full size spring in the 10rd mags to avoid someone trying to place more rounds in the mags. The spring and follower are for a used Mag I bought. When cleaned it I found the spring and follower hard been cut to the point where I was able to get 11 rounds in the Mag. I ordered the new one manly because that mag was not locking the slide back all the time and to avoid any other problems here in Mass.
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